Computer peripherals computer is additional equipment needed for the purpose - other purposes. For example the network connection, printing, or take pictures. Peripheral include Printer, Scanner, Modem, Network Card, and so forth. Installing peripherals include a physical installation and the installation of the software. Physical installation includes installation of peripherals with the good and true, and the installation software peripherals include the introduction of the operating system to install the necessary drivers.
Peripheral grouping.
According to the function & their role is 2 are:
1. Main Peripheral &
2. Peripheral Auxilarry
According to the work process is divided peripheral
into 2, namely:
1. Peripheral Input &
2. Peripheral Output
Grouping Peripheral
Peripherals through a physical connector port:
Serial
Parallel
PS / 2
USB
Peripherals through a physical connector port:
Serial
Connectors & standard protocol used to connect equipment. Data transfer as many as 8 bits dlm conducted a time series.
Peripherals through a physical connector port:
Parallel
Hardware interface is often used in printers in which the data transfer as many as 8 bits at a time in parallel.
Peripherals through a physical connector port:
PS / 2
Hardware interface is used to connect the mouse with the keyboard.
Peripherals through a physical connector port:
Universal Serial Bus
USB is a hardware interface to connect
high-speed peripherals.
Various kinds of peripherals and functions:
1) Printer
Printer is an output component which has been classified as Hard Copy Device. That is a tool used to print the output of the process undertaken by both written and computer graphics directly by using the media or other paper.
Printer
Scanner
The shape and size of various scanners, there is a large folio-sized paper there is also a postcard size, even the latest, the new pen-shaped launched by WizCom Technologies Inc. company. Pen-sized scanner can store up to 1000 printed pages of text and then transfer them to a personal computer (PC).
Pen-sized scanner is called QuickLink. Pen-sized scanner was six inches long and weighs about three ounces. Scanner WizCom according able to perform the work more quickly at random from a flat-shaped scanner.
files that have been taken with a scanner that can be inserted directly into any computer application that recognize ASCII text. At this moment a lot of scanners that circulate in the world with various brands too, in which the output of the Canon scanner, Hewlett Packard (HP), Epson, Umax and many more.
Differences of each scanner from various brands lies in the use of technology and resolution.
How a Scanner:
When the mouse button is pressed to start Scanning, what happens is the emphasis of the computer mouse button move the speed control on the scanner. Machine located in the scanner to control the delivery process of scanning units.
Then place the process of scanning unit shipments to the place or the appropriate path to start scanning immediately.
Visible lights on the scanner indicates that the scanning activities have been started. After the lights were gone, meaning the scan is complete and the results can be seen on the monitor screen. If the results or display text / image to be changed, we can change it by using software applications available. For example with photoshop, Adobe and others. pot scanned.
There are two different kinds of check scanners in the color image scanner which can only be one color scan and save all the colors at that time only. Scanner that can directly be used three times to save a few colors. The colors are red, green and blue.
Scaner the former faster than the second, but becomes less good when used for color reproduction. Most scanners run at 1-bit (binary digit / digits binary), 8-bit (256 colors), and 24 bit (more than 16 million colors). Well, if we need a very good result it is recommended to use scanner with great bits for more color resolution and good.
Tidak ada komentar:
Posting Komentar